QUE COMPETÊNCIAS PARA EDUCAR NA ERA PLANETÁRIA?

A atual reestruturação econômica desencadeada pelo avanço tecnológico imprime mudanças no ambiente educacional e acaba por delinear um perfil profissional mais qualificado, pautado na aquisição de novas habilidades, competências e aprendizado contínuo. À medida que se intensificam as demandas profissionais, maior é a urgência em serem propostas novas frentes que contemplem uma discussão sobre a construção de competências como uma demanda social emergente. Desta forma, o desafio para os professores universitários é o de refletir sobre as competências exigidas por uma era digital e planetária, a partir de uma perspectiva teórica que explica necessidades, aceitação e possibilidades de mudanças.Palavras-chave: construção de competências; era digital e planetária; ambiente educacional

Nível de preços no território brasileiro: uma análise empírica de seus determinantes

Esse estudo analisa empiricamente quais são os determinantes do IPCA índice cheio, e suas decomposições, estimando para tal duas equações, e utilizado modelos autorregressivos vetoriais. A base de dados compreende o período de janeiro de 2000 até dezembro de 2011. Cinco principais grupos são apontados como determinantes da inflação: i) demanda agregada; ii) oferta agregada; iii) taxa de câmbio; iv) salários e v) inércia. As evidências revelam que a inércia, os fatores externos e as condições de oferta se sobrepõem a demanda no sentido de determinar a inflação brasileira. Assim, a inflação se mostra pouco sensível ao nível de atividade.his study analyzes empirically the determinants of the IPCA index full, and their decompositions, estimating for such two equations which incorporate these different situations and used a structural vector autoregression model. The database that covers the period from January 2000 to December 2011. Five main groups are identified as determinants of inflation: i) aggregate demand, ii) aggregate supply iii) exchange rate, iv) wages ev) inertia. The evidence presented in this paper show that the inertia, external factors and supply conditions overlap demand in order to determine the inflation. Therefore, inflation shows little sensitivity to the level of activity.Este estudio analiza empíricamente cuáles son los determinantes del IPCA índice lleno, y sus descomposiciones, estimando para tal dos ecuaciones, y utilizados modelos autorregresivos vectoriales. La base de datos comprende el período de enero de 2000 hasta diciembre de 2011. Cinco principales grupos se apuntan como determinantes de la inflación: i) demanda agregada; ii) oferta agregada; iii) tipo de cambio; iv) salarios y v) inercia. Las evidencias revelan que la inercia, los factores externos y las condiciones de oferta se superponen a la demanda en el sentido de determinar la inflación brasileña. Así, la inflación se muestra poco sensible al nivel de actividad.Cette étude analyse empiriquement quels sont les déterminants de l'indice IPCA complet et ses décompositions, en estimant pour ces deux équations, et en utilisant des modèles vectoriels autorégressifs. La base de données couvre la période de janvier 2000 à décembre 2011. Cinq principaux groupes sont identifiés comme déterminants de l'inflation: i) la demande globale; ii) l'offre globale; iii) taux de change; iv) salaires et v) inertie. Les données montrent que l'inertie, les facteurs externes et les conditions de l'offre chevauchent la demande pour déterminer l'inflation brésilienne. Ainsi, l'inflation n'est pas sensible au niveau d'activité

Influência do tabagismo na força muscular respiratória em idosos

This study evaluated the influence of smoking on respiratory muscle strength (maximal inspiratory and maximal expiratory pressures) in physically independent elderly compared to nonsmokers. We selected 120 aged people equal or above 60 years-old divided into two groups, according to the World Health Organization criteria: Smokers Group, including 106 individuals, and Nonsmokers Group, with 14. A structured questionnaire was applied to collect demographic data. For respiratory muscle strength evaluation, a GERAR® analog manovacuometer with a range of -300 to +300 cmH2O was used. Student's t-test was used to evaluate the difference between means, and Pearson's correlation coefficient (r²) to analyze associations. The Smokers Group presented lower maximum inspiratory pressure with a significant difference (pEste estudo consistiu em avaliar a influência do tabagismo na força muscular respiratória (pressões inspiratória máxima e expiratória máxima) em idosos fisicamente independentes, comparando-os àqueles não fumantes. Foram selecionados 120 idosos com idades iguais ou acima de 60 anos de ambos os sexos e divididos em dois grupos de acordo com os critérios da Organização Mundial de Saúde: Grupo Tabagistas, com 14, e Grupo Não tabagistas, com 106 indivíduos. Foi aplicado um questionário estruturado para coleta de dados demográficos. Para avaliação da força muscular respiratória, utilizou-se o manovacuômetro analógico da marca Gerar®, com intervalo de -300 a +300 cmH2O. Foram utilizados o teste t de Student para avaliar a diferença entre as médias encontradas e o coeficiente de correlação de Pearson (r²) para analisar as associações. O Grupo Tabagistas apresentou menor pressão inspiratória máxima com diferença significante (

APROVEITAMENTO ENERGÉTICO DE RESÍDUOS SÓLIDOS URBANOS EM PROCESSO DE PIRÓLISE

Esse trabalho tem como objetivo apresentar as características físicas e químicas de Resíduos Sólidos Urbanos (RSU) e avaliar o seu aproveitamento através do processo de pirólise, através de uma revisão da literatura com a finalidade de ser obter um retrato dos mesmos como uma fonte de possibilidades para o desenvolvimento de rotas térmicas de obtenção de produtos químicos. Os RSU são constituídos principalmente de papel, papelão, plásticos, vidros, metais, têxteis, restos de comidas e materiais inertes. A pirólise é um processo endotérmico realizado na ausência de oxigênio, gerando como produtos finais bio-óleo, gases e finos de carvão. Esse processo térmico pode ser influenciado por diversos fatores relacionados às características da biomassa e condições de operação do reator. O bio-óleo apresenta alto poder calorífico e ausência de compostos sulfurados, o que aponta para a possibilidade do seu uso como biocombustível. A fração gasosa obtida através da pirólise de RSU possui alto poder calorífico e é composta por hidrocarbonetos, hidrogênio, CO e CO2. O carvão também pode ser empregado na remoção de metais pesados e substâncias orgânicas de efluentes industriais, substituindo o carvão ativado comercial. Reatores de pirólise de RSU em escala real devem apresentar um sistema de purificação do gás de síntese como forma de evitar a contaminação ambiental através de compostos presentes na fração gasosa.

Convalescent plasma for COVID-19 in hospitalised patients : an open-label, randomised clinical trial

Background: The effects of convalescent plasma (CP) therapy in hospitalised patients with coronavirus disease 2019 (COVID-19) remain uncertain. This study investigates the effect of CP on clinical improvement in these patients. Methods: This is an investigator-initiated, randomised, parallel arm, open-label, superiority clinical trial. Patients were randomly (1:1) assigned to two infusions of CP plus standard of care (SOC) or SOC alone. The primary outcome was the proportion of patients with clinical improvement 28 days after enrolment. Results: A total of 160 (80 in each arm) patients (66.3% critically ill, 33.7% severely ill) completed the trial. The median (interquartile range (IQR)) age was 60.5 (48–68) years; 58.1% were male and the median (IQR) time from symptom onset to randomisation was 10 (8–12) days. Neutralising antibody titres >1:80 were present in 133 (83.1%) patients at baseline. The proportion of patients with clinical improvement on day 28 was 61.3% in the CP+SOC group and 65.0% in the SOC group (difference −3.7%, 95% CI −18.8–11.3%). The results were similar in the severe and critically ill subgroups. There was no significant difference between CP+SOC and SOC groups in pre-specified secondary outcomes, including 28-day mortality, days alive and free of respiratory support and duration of invasive ventilatory support. Inflammatory and other laboratory marker values on days 3, 7 and 14 were similar between groups. Conclusions: CP+SOC did not result in a higher proportion of clinical improvement on day 28 in hospitalised patients with COVID-19 compared to SOC alone

Production of He-4 and (4) in Pb-Pb collisions at root(NN)-N-S=2.76 TeV at the LHC

Results on the production of He-4 and (4) nuclei in Pb-Pb collisions at root(NN)-N-S = 2.76 TeV in the rapidity range vertical bar y vertical bar <1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0-10% central events are found to be dN/dy4(He) = (0.8 +/- 0.4 (stat) +/- 0.3 (syst)) x 10(-6) and dN/dy4 = (1.1 +/- 0.4 (stat) +/- 0.2 (syst)) x 10(-6), respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (T-chem = 156 MeV) as for light hadrons. The measured ratio of (4)/He-4 is 1.4 +/- 0.8 (stat) +/- 0.5 (syst). (C) 2018 Published by Elsevier B.V.Peer reviewe

Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ